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Scientific article
Open access
English

Heralded amplification of photonic qubits

Published inOptics express, vol. 24, no. 1, 125
Publication date2016
Abstract

We demonstrate postselection free heralded qubit amplification for Time-Bin qubits and single photon states in an all-fibre, telecom-wavelength, scheme that highlights the simplicity, stability and potential for fully integrated photonic solutions. Exploiting high-efficiency superconducting detectors, the gain, fidelity and the performance of the amplifier are studied as a function of loss. We also demonstrate the first heralded single photon amplifier with independent sources. This provides a significant advance towards demonstrating device-independent quantum key distribution as well as fundamental tests of quantum mechanics over extended distances.

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Citation (ISO format)
BRUNO, Natalia et al. Heralded amplification of photonic qubits. In: Optics express, 2016, vol. 24, n° 1, p. 125. doi: 10.1364/OE.24.000125
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ISSN of the journal1094-4087
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